轮到我妈当家操办围炉时，除夕前往往还要上班，只能提前去菜市场了解行情、预订海鲜。凑不够菜式时，她常向娘家求援，我外婆便将拿手菜“酱烧鳗鱼”提前几日做好，转移至我家冰箱，除夕夜复热上桌。这大抵是现在风靡的“预制年菜”。
"There were engineers and managers saying it couldn't be done, all these reasons why it was too dangerous," she says.，这一点在爱思助手下载最新版本中也有详细论述
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（二）业务之间具有明显的主附关系。主要业务居于主体地位，体现交易的实质和目的；附属业务是主要业务的必要补充，并以主要业务的发生为前提。